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linux/arch/ia64/include/asm/machvec.h
John Keller 175add1981 [IA64] SN specific version of dma_get_required_mask() 
Create a platform specific version of dma_get_required_mask()
for ia64 SN Altix. All SN Altix platforms support 64 bit DMA
addressing regardless of the size of system memory.
Create an ia64 machvec for dma_get_required_mask, with the
SN version unconditionally returning DMA_64BIT_MASK.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-01-15 10:42:16 -08:00

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/*
* Machine vector for IA-64.
*
* Copyright (C) 1999 Silicon Graphics, Inc.
* Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
* Copyright (C) Vijay Chander <vijay@engr.sgi.com>
* Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#ifndef _ASM_IA64_MACHVEC_H
#define _ASM_IA64_MACHVEC_H
#include <linux/types.h>
#include <linux/swiotlb.h>
/* forward declarations: */
struct device;
struct pt_regs;
struct scatterlist;
struct page;
struct mm_struct;
struct pci_bus;
struct task_struct;
struct pci_dev;
struct msi_desc;
struct dma_attrs;
typedef void ia64_mv_setup_t (char **);
typedef void ia64_mv_cpu_init_t (void);
typedef void ia64_mv_irq_init_t (void);
typedef void ia64_mv_send_ipi_t (int, int, int, int);
typedef void ia64_mv_timer_interrupt_t (int, void *);
typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
typedef u8 ia64_mv_irq_to_vector (int);
typedef unsigned int ia64_mv_local_vector_to_irq (u8);
typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
u8 size);
typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
u8 size);
typedef void ia64_mv_migrate_t(struct task_struct * task);
typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, gfp_t);
typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t);
typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int);
typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int);
typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int);
typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int);
typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int);
typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int);
typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int);
typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int);
typedef int ia64_mv_dma_mapping_error(struct device *, dma_addr_t dma_addr);
typedef int ia64_mv_dma_supported (struct device *, u64);
typedef dma_addr_t ia64_mv_dma_map_single_attrs (struct device *, void *, size_t, int, struct dma_attrs *);
typedef void ia64_mv_dma_unmap_single_attrs (struct device *, dma_addr_t, size_t, int, struct dma_attrs *);
typedef int ia64_mv_dma_map_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *);
typedef void ia64_mv_dma_unmap_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *);
typedef u64 ia64_mv_dma_get_required_mask (struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
* expected to follow this architected model (see Section 10.7 in the
* IA-64 Architecture Software Developer's Manual). Unfortunately,
* some broken machines do not follow that model, which is why we have
* to make the inX/outX operations part of the machine vector.
* Platform designers should follow the architected model whenever
* possible.
*/
typedef unsigned int ia64_mv_inb_t (unsigned long);
typedef unsigned int ia64_mv_inw_t (unsigned long);
typedef unsigned int ia64_mv_inl_t (unsigned long);
typedef void ia64_mv_outb_t (unsigned char, unsigned long);
typedef void ia64_mv_outw_t (unsigned short, unsigned long);
typedef void ia64_mv_outl_t (unsigned int, unsigned long);
typedef void ia64_mv_mmiowb_t (void);
typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
static inline void
machvec_noop (void)
{
}
static inline void
machvec_noop_mm (struct mm_struct *mm)
{
}
static inline void
machvec_noop_task (struct task_struct *task)
{
}
static inline void
machvec_noop_bus (struct pci_bus *bus)
{
}
extern void machvec_setup (char **);
extern void machvec_timer_interrupt (int, void *);
extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
extern void machvec_tlb_migrate_finish (struct mm_struct *);
# if defined (CONFIG_IA64_HP_SIM)
# include <asm/machvec_hpsim.h>
# elif defined (CONFIG_IA64_DIG)
# include <asm/machvec_dig.h>
# elif defined(CONFIG_IA64_DIG_VTD)
# include <asm/machvec_dig_vtd.h>
# elif defined (CONFIG_IA64_HP_ZX1)
# include <asm/machvec_hpzx1.h>
# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
# include <asm/machvec_hpzx1_swiotlb.h>
# elif defined (CONFIG_IA64_SGI_SN2)
# include <asm/machvec_sn2.h>
# elif defined (CONFIG_IA64_SGI_UV)
# include <asm/machvec_uv.h>
# elif defined (CONFIG_IA64_XEN_GUEST)
# include <asm/machvec_xen.h>
# elif defined (CONFIG_IA64_GENERIC)
# ifdef MACHVEC_PLATFORM_HEADER
# include MACHVEC_PLATFORM_HEADER
# else
# define platform_name ia64_mv.name
# define platform_setup ia64_mv.setup
# define platform_cpu_init ia64_mv.cpu_init
# define platform_irq_init ia64_mv.irq_init
# define platform_send_ipi ia64_mv.send_ipi
# define platform_timer_interrupt ia64_mv.timer_interrupt
# define platform_global_tlb_purge ia64_mv.global_tlb_purge
# define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
# define platform_dma_init ia64_mv.dma_init
# define platform_dma_alloc_coherent ia64_mv.dma_alloc_coherent
# define platform_dma_free_coherent ia64_mv.dma_free_coherent
# define platform_dma_map_single_attrs ia64_mv.dma_map_single_attrs
# define platform_dma_unmap_single_attrs ia64_mv.dma_unmap_single_attrs
# define platform_dma_map_sg_attrs ia64_mv.dma_map_sg_attrs
# define platform_dma_unmap_sg_attrs ia64_mv.dma_unmap_sg_attrs
# define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu
# define platform_dma_sync_sg_for_cpu ia64_mv.dma_sync_sg_for_cpu
# define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device
# define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device
# define platform_dma_mapping_error ia64_mv.dma_mapping_error
# define platform_dma_supported ia64_mv.dma_supported
# define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
# define platform_irq_to_vector ia64_mv.irq_to_vector
# define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
# define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
# define platform_pci_legacy_read ia64_mv.pci_legacy_read
# define platform_pci_legacy_write ia64_mv.pci_legacy_write
# define platform_inb ia64_mv.inb
# define platform_inw ia64_mv.inw
# define platform_inl ia64_mv.inl
# define platform_outb ia64_mv.outb
# define platform_outw ia64_mv.outw
# define platform_outl ia64_mv.outl
# define platform_mmiowb ia64_mv.mmiowb
# define platform_readb ia64_mv.readb
# define platform_readw ia64_mv.readw
# define platform_readl ia64_mv.readl
# define platform_readq ia64_mv.readq
# define platform_readb_relaxed ia64_mv.readb_relaxed
# define platform_readw_relaxed ia64_mv.readw_relaxed
# define platform_readl_relaxed ia64_mv.readl_relaxed
# define platform_readq_relaxed ia64_mv.readq_relaxed
# define platform_migrate ia64_mv.migrate
# define platform_setup_msi_irq ia64_mv.setup_msi_irq
# define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
# define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
# define platform_kernel_launch_event ia64_mv.kernel_launch_event
# endif
/* __attribute__((__aligned__(16))) is required to make size of the
* structure multiple of 16 bytes.
* This will fillup the holes created because of section 3.3.1 in
* Software Conventions guide.
*/
struct ia64_machine_vector {
const char *name;
ia64_mv_setup_t *setup;
ia64_mv_cpu_init_t *cpu_init;
ia64_mv_irq_init_t *irq_init;
ia64_mv_send_ipi_t *send_ipi;
ia64_mv_timer_interrupt_t *timer_interrupt;
ia64_mv_global_tlb_purge_t *global_tlb_purge;
ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
ia64_mv_dma_init *dma_init;
ia64_mv_dma_alloc_coherent *dma_alloc_coherent;
ia64_mv_dma_free_coherent *dma_free_coherent;
ia64_mv_dma_map_single_attrs *dma_map_single_attrs;
ia64_mv_dma_unmap_single_attrs *dma_unmap_single_attrs;
ia64_mv_dma_map_sg_attrs *dma_map_sg_attrs;
ia64_mv_dma_unmap_sg_attrs *dma_unmap_sg_attrs;
ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu;
ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu;
ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device;
ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device;
ia64_mv_dma_mapping_error *dma_mapping_error;
ia64_mv_dma_supported *dma_supported;
ia64_mv_dma_get_required_mask *dma_get_required_mask;
ia64_mv_irq_to_vector *irq_to_vector;
ia64_mv_local_vector_to_irq *local_vector_to_irq;
ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
ia64_mv_pci_legacy_read_t *pci_legacy_read;
ia64_mv_pci_legacy_write_t *pci_legacy_write;
ia64_mv_inb_t *inb;
ia64_mv_inw_t *inw;
ia64_mv_inl_t *inl;
ia64_mv_outb_t *outb;
ia64_mv_outw_t *outw;
ia64_mv_outl_t *outl;
ia64_mv_mmiowb_t *mmiowb;
ia64_mv_readb_t *readb;
ia64_mv_readw_t *readw;
ia64_mv_readl_t *readl;
ia64_mv_readq_t *readq;
ia64_mv_readb_relaxed_t *readb_relaxed;
ia64_mv_readw_relaxed_t *readw_relaxed;
ia64_mv_readl_relaxed_t *readl_relaxed;
ia64_mv_readq_relaxed_t *readq_relaxed;
ia64_mv_migrate_t *migrate;
ia64_mv_setup_msi_irq_t *setup_msi_irq;
ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
ia64_mv_kernel_launch_event_t *kernel_launch_event;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
{ \
#name, \
platform_setup, \
platform_cpu_init, \
platform_irq_init, \
platform_send_ipi, \
platform_timer_interrupt, \
platform_global_tlb_purge, \
platform_tlb_migrate_finish, \
platform_dma_init, \
platform_dma_alloc_coherent, \
platform_dma_free_coherent, \
platform_dma_map_single_attrs, \
platform_dma_unmap_single_attrs, \
platform_dma_map_sg_attrs, \
platform_dma_unmap_sg_attrs, \
platform_dma_sync_single_for_cpu, \
platform_dma_sync_sg_for_cpu, \
platform_dma_sync_single_for_device, \
platform_dma_sync_sg_for_device, \
platform_dma_mapping_error, \
platform_dma_supported, \
platform_dma_get_required_mask, \
platform_irq_to_vector, \
platform_local_vector_to_irq, \
platform_pci_get_legacy_mem, \
platform_pci_legacy_read, \
platform_pci_legacy_write, \
platform_inb, \
platform_inw, \
platform_inl, \
platform_outb, \
platform_outw, \
platform_outl, \
platform_mmiowb, \
platform_readb, \
platform_readw, \
platform_readl, \
platform_readq, \
platform_readb_relaxed, \
platform_readw_relaxed, \
platform_readl_relaxed, \
platform_readq_relaxed, \
platform_migrate, \
platform_setup_msi_irq, \
platform_teardown_msi_irq, \
platform_pci_fixup_bus, \
platform_kernel_launch_event \
}
extern struct ia64_machine_vector ia64_mv;
extern void machvec_init (const char *name);
extern void machvec_init_from_cmdline(const char *cmdline);
# else
# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
# endif /* CONFIG_IA64_GENERIC */
/*
* Define default versions so we can extend machvec for new platforms without having
* to update the machvec files for all existing platforms.
*/
#ifndef platform_setup
# define platform_setup machvec_setup
#endif
#ifndef platform_cpu_init
# define platform_cpu_init machvec_noop
#endif
#ifndef platform_irq_init
# define platform_irq_init machvec_noop
#endif
#ifndef platform_send_ipi
# define platform_send_ipi ia64_send_ipi /* default to architected version */
#endif
#ifndef platform_timer_interrupt
# define platform_timer_interrupt machvec_timer_interrupt
#endif
#ifndef platform_global_tlb_purge
# define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
#endif
#ifndef platform_tlb_migrate_finish
# define platform_tlb_migrate_finish machvec_noop_mm
#endif
#ifndef platform_kernel_launch_event
# define platform_kernel_launch_event machvec_noop
#endif
#ifndef platform_dma_init
# define platform_dma_init swiotlb_init
#endif
#ifndef platform_dma_alloc_coherent
# define platform_dma_alloc_coherent swiotlb_alloc_coherent
#endif
#ifndef platform_dma_free_coherent
# define platform_dma_free_coherent swiotlb_free_coherent
#endif
#ifndef platform_dma_map_single_attrs
# define platform_dma_map_single_attrs swiotlb_map_single_attrs
#endif
#ifndef platform_dma_unmap_single_attrs
# define platform_dma_unmap_single_attrs swiotlb_unmap_single_attrs
#endif
#ifndef platform_dma_map_sg_attrs
# define platform_dma_map_sg_attrs swiotlb_map_sg_attrs
#endif
#ifndef platform_dma_unmap_sg_attrs
# define platform_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs
#endif
#ifndef platform_dma_sync_single_for_cpu
# define platform_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu
#endif
#ifndef platform_dma_sync_sg_for_cpu
# define platform_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu
#endif
#ifndef platform_dma_sync_single_for_device
# define platform_dma_sync_single_for_device swiotlb_sync_single_for_device
#endif
#ifndef platform_dma_sync_sg_for_device
# define platform_dma_sync_sg_for_device swiotlb_sync_sg_for_device
#endif
#ifndef platform_dma_mapping_error
# define platform_dma_mapping_error swiotlb_dma_mapping_error
#endif
#ifndef platform_dma_supported
# define platform_dma_supported swiotlb_dma_supported
#endif
#ifndef platform_dma_get_required_mask
# define platform_dma_get_required_mask ia64_dma_get_required_mask
#endif
#ifndef platform_irq_to_vector
# define platform_irq_to_vector __ia64_irq_to_vector
#endif
#ifndef platform_local_vector_to_irq
# define platform_local_vector_to_irq __ia64_local_vector_to_irq
#endif
#ifndef platform_pci_get_legacy_mem
# define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
#endif
#ifndef platform_pci_legacy_read
# define platform_pci_legacy_read ia64_pci_legacy_read
extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
#endif
#ifndef platform_pci_legacy_write
# define platform_pci_legacy_write ia64_pci_legacy_write
extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
#endif
#ifndef platform_inb
# define platform_inb __ia64_inb
#endif
#ifndef platform_inw
# define platform_inw __ia64_inw
#endif
#ifndef platform_inl
# define platform_inl __ia64_inl
#endif
#ifndef platform_outb
# define platform_outb __ia64_outb
#endif
#ifndef platform_outw
# define platform_outw __ia64_outw
#endif
#ifndef platform_outl
# define platform_outl __ia64_outl
#endif
#ifndef platform_mmiowb
# define platform_mmiowb __ia64_mmiowb
#endif
#ifndef platform_readb
# define platform_readb __ia64_readb
#endif
#ifndef platform_readw
# define platform_readw __ia64_readw
#endif
#ifndef platform_readl
# define platform_readl __ia64_readl
#endif
#ifndef platform_readq
# define platform_readq __ia64_readq
#endif
#ifndef platform_readb_relaxed
# define platform_readb_relaxed __ia64_readb_relaxed
#endif
#ifndef platform_readw_relaxed
# define platform_readw_relaxed __ia64_readw_relaxed
#endif
#ifndef platform_readl_relaxed
# define platform_readl_relaxed __ia64_readl_relaxed
#endif
#ifndef platform_readq_relaxed
# define platform_readq_relaxed __ia64_readq_relaxed
#endif
#ifndef platform_migrate
# define platform_migrate machvec_noop_task
#endif
#ifndef platform_setup_msi_irq
# define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
#endif
#ifndef platform_teardown_msi_irq
# define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
#endif
#ifndef platform_pci_fixup_bus
# define platform_pci_fixup_bus machvec_noop_bus
#endif
#endif /* _ASM_IA64_MACHVEC_H */
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